tornado

问题 Suppose I've got a simple Tornado web server, which starts like this: app = ... # create an Application srv = tornado.httpserver.HTTPServer(app) srv.bind(port) srv.start() tornado.ioloop.IOLoop.instance().start() I am writing an "end-to-end" test, which starts the server in a separate process with subprocess.Popen and then calls the server over HTTP. Now I need to make sure the server did not fail to start (e.g. because the port is busy) and then wait till server is ready. I wrote a function

问题 I have a server written in Python 2.7/Tornado and I am trying to deploy it on AWS. I came across AWS Elastic Beanstalk which looked like a very convenient method to deploy my code. I went through this tutorial and was able to deploy the Flask sample app. However, I can't figure out how to deploy a test tornado app like below. import tornado.web import tornado.ioloop class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") if __name__ == "__main__": app =

问题 Upon form submit the Tornado server does some checks and sends a response back to the client, which should appear in that current page as an alert . Instead a blank html page is rendered with the Json response, but not as an alert on the current page where the form was submitted. On submit the form is sent via post to /dh (DataHandler) This is the Jquery: $.post("/dh",function(data,status){ alert("Data: " + data + "\nStatus: " + status); },"json"); The Tornado code: class DataHandler

问题 Hi all here is a small application in tornado can any off u please tell me how to navigate from one html to other P.S Now i am getting a error 404 not found should i be using appengine or any other thing is required thanks in advance enter code here import tornado.httpserver import tornado.ioloop import tornado.options import tornado.web from tornado.options import define, options define("port", default=8888, help="run on the given port", type=int) class MainHandler(tornado.web.RequestHandler

问题 I have a directory structure setup like: root/ js/ css/ libs/ index.html From Tornado, I want to serve js, css, and libs as static directories, but I can only find out how to serve one of them. Can this be done? 回答1: No its not possible. You could ofcourse create a new folder -- parent, and place js, css and libs inside of that folder, and then speciy that parent folder as the 'static_path' nb. "In production, you probably want to serve static files from a more optimized static file server

问题 I'm using tornado and I want to Insert something to my MongoDB from values in a HTML form. in the HTML file I have a form like this: <form method="get" > with 2 textbox and a submit button. and I don't know what to set as "action" I have a handler class with a function called "post" like bellow: class MyHandler(tornado.web.RequestHandler): def post(self): name = self.get_argument("Name", "") index = self.get_argument("Index","") .... code for updating MongoDB I have a file called BaseUrl.py

问题 I have a Tornado Websocket Server and I want to time out after 30 minutes of inactivity. I use self.close() to close the connection after 30 minutes of inactivity. But it seems that some connections stay open even after being closed. Here the essential part of the code (which is implemented after getting help from here: How to automatically close connection serverside after a certain time in Tornado Websocket): Open connection: class WebSocketHandler(tornado.websocket.WebSocketHandler): def

问题 How do I get the current version of my python Tornado Module Version? With other packages I can do the following: print <modulename>.__version__ Source: How to check version of python modules? 回答1: Tornado has both tornado.version , which is a string for human consumption (currently "4.2"), and tornado.version_info , which is a numeric tuple that is better for programmatic comparisons (currently (4, 2, 0, 0) ). The fourth value of version_info will be negative for betas and other pre-releases

问题 I have my Tornado client continuously listening to my Tornado server in a loop, as it is mentioned here - http://tornadoweb.org/en/stable/websocket.html#client-side-support. It looks like this: import tornado.websocket from tornado import gen @gen.coroutine def test(): client = yield tornado.websocket.websocket_connect("ws://localhost:9999/ws") client.write_message("Hello") while True: msg = yield client.read_message() if msg is None: break print msg client.close() if __name__ == "__main__":

问题 I am trying to develop a small app which will gather weather data from an API. I have used APScheduler to execute the function every x minutes. I use Python Tornado framework. The error I am getting is: INFO Job "GetWeather (trigger: interval[0:01:00], next run at: 2015-03-28 11:40:58 CET)" executed successfully ERROR Exception in callback functools.partial(<function wrap.<locals>.null_wrapper at 0x0335C978>, <tornado.concurrent.Future object at 0x03374430>) Traceback (most recent call last):